at night, windshield glare

I experimented with trying to cover the source of the offending reflection (coming from the projector in the dash) with thin strips of rubber - with no success. However, I finally solved the problem (with the horizontal method):

Find a piece of rubber / foam. It has to be thin, matt and similar to the colour of the dash surrounding the projector aperture (to prevent a daytime reflection). It should not be too flexible - it has to overhang the dash / projector aperture, but will be supported at either end. If it is too thick the reflection of a shadow created by the edge will be visible. So the thinner the better.

Cut it to size 18cm minimum x 6 cm.

Place it on the dash and slide it forward over the projector aperture so that about 3cm overhangs the aperture. 18cm is a bit wider than the aperture, so the sides of the rubber / foam will be supported. You can position it exactly so that the reflection on the windscreen is obscured, but not the display itself.

I secured it with a few bits of blue tack, but for a more permanent fix, mark, then secure in position with double sided tape.

 

yep.